[INFO] fetching crate rtdlib 1.6.3...
[INFO] checking rtdlib-1.6.3 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate rtdlib 1.6.3 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate rtdlib 1.6.3 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rtdlib 1.6.3
[INFO] finished tweaking crates.io crate rtdlib 1.6.3
[INFO] tweaked toml for crates.io crate rtdlib 1.6.3 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rtdlib-sys v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d093fe33580ee21df18c16f38cff7c718af14b70ba0e8dc4e7aa5dce242d54eb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d093fe33580ee21df18c16f38cff7c718af14b70ba0e8dc4e7aa5dce242d54eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d093fe33580ee21df18c16f38cff7c718af14b70ba0e8dc4e7aa5dce242d54eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d093fe33580ee21df18c16f38cff7c718af14b70ba0e8dc4e7aa5dce242d54eb", kill_on_drop: false }`
[INFO] [stdout] d093fe33580ee21df18c16f38cff7c718af14b70ba0e8dc4e7aa5dce242d54eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3828e6a43bbfcb4e5fb3b0b5d0cc2ccd8cf3968d485dd2947001393944c3c10
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c3828e6a43bbfcb4e5fb3b0b5d0cc2ccd8cf3968d485dd2947001393944c3c10", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]     Checking rtdlib v1.6.3 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `rtdlib`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name rtdlib --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,metadata -Cembed-bitcode=no -C debuginfo=2 --test --cfg 'feature="default"' -C metadata=4edd064558e62e33 -C extra-filename=-4edd064558e62e33 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern libc=/opt/rustwide/target/debug/deps/liblibc-0fee10f4d9a520d9.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-cce7651b310d6192.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-1a90e8bbd5e7840d.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-93c72174ebe7fb3a.rmeta --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:36:30
[INFO] [stdout]    |
[INFO] [stdout] 36 |   fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                              ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:30:36
[INFO] [stdout]    |
[INFO] [stdout] 30 |       RTDError::Io(ref err) => err.description(),
[INFO] [stdout]    |                                    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:31:43
[INFO] [stdout]    |
[INFO] [stdout] 31 |       RTDError::SerdeJson(ref err) => err.description(),
[INFO] [stdout]    |                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c3828e6a43bbfcb4e5fb3b0b5d0cc2ccd8cf3968d485dd2947001393944c3c10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3828e6a43bbfcb4e5fb3b0b5d0cc2ccd8cf3968d485dd2947001393944c3c10", kill_on_drop: false }`
[INFO] [stdout] c3828e6a43bbfcb4e5fb3b0b5d0cc2ccd8cf3968d485dd2947001393944c3c10